Head and Neck Final
Terms in this set (86)
What are the divisions of the motor part of ANS?
Sympathetic nervous system and Parasympathetic nervous system
What does the ANS control?
Cardiac muscle, smooth muscle and glands
What does the motor part of SNS control?
What are the motor branches of the mandibular division of the trigeminal nerve?
Muscles of mastication, Tensor tympani, Tensor veli palatini, Mylohiod, and anterior belly of the digastric muscle
What nerve innervates the muscles of mastication/
The mandibular nerve V3
What are the sensory branches of the mandibular division of the trigeminal nerve?
Buccal nerve, Auriculotemporal nerve, Lingual nerve, Inferior alveolar nerve, Mental nerve, and Incisive nerve.
What does the Buccal nerve innervate?
Skin of the cheek, buccal mucous membranes, and buccal gingiva of the mandibular posterior teeth.
What does the Auriculotemporal nerve innervate?
External ear and scalp
What nerve carries postganglionic parasympathetic nerve fibers to the parotid salivary gland?
What does the Lingual nerve innervate?
General sensation for the body of the tongue, the floor of the mouth, and the lingual gingiva of the mandibular teeth.
What does the Inferior alveolar nerve innervate?
Mandibular teeth and associated tissues.
What does the Mental nerve innervate?
Chin, lower lip, and labial mucosa of the mandibular premolars and anterior teeth.
What does the Incisive nerve innervate?
Mandibular premolars and anterior teeth that originate in the pulp
The tongue is innervated by several nerves. What are they?
Lingual nerve ( branch of the Trigeminal), Hypoglossal nerve, Glossopharyngeal nerve and Chorda tympani nerve ( branch of the facial)
What does the Chorda Tympani nerve transmit?
Taste senstation for the body of the tongue, Anterior 2/3 of the tongue
What does the Lingual nerve transmit?
General sensation for the body of the tongue
What does the Hypoglossal nerve transmit?
Motor, efferent nerve for both the intrinsic and extrinsic muscles of the tongue.
What does the Glossopharyngeal nerve transmit?
Taste and general sensation for the posterior base of the tongue
What passes through the Foramen rotundum?
What passes through the Foramen ovale?
What passes through the Stylomastoid foramen?
What passes through the Incisive foramen?
What passes through the Foramen spinosum?
Middle menegial artery
What passes through the Mandibualr foramen?
Inferior alveolar nerve
What are the final branches of the Facial nerve?
Temporal Bs, Zyomatic bs, Buccal bs, Mandibular bs, and cervical bs.
What does the temporal bs innervate?
Supply the muscles anterior to the ear, frontal belly of the epicranial muscle, superior part of the orbicularis oculi muscle, and corrugator supercilii muscle.
What does the zygomatic bs innervate?
Supply the inferior part of the orbicularis oculi muscle and zygomatic major and minor muscles
What does the buccal bs innervate?
Supply the muscles of the upper lip and nose and buccinator, risorius, and orbicularis oris muscles.
What does the mandibular bs innervate?
Supply the muscles of the lower lip and mentalis muscle
What does the cervical bs innervate?
Runs inferior to the mandible to supply the platysma muscle
What nerve innervates the parotid salivary gland?
Preganglionic (lesser petrosal nerve) otic ganglion Postganglionic (auriculotemporal nerve)
What nerve innervates the submandibular salivary gland?
Preganglionic (chorda tympani nerve) submandibular ganglion Postganglionic (Lingual nerve)
For filling procedure on the maxillary incisor, what nerve should be anesthetized?
What is the best way to anesthetize one incisor?
For Complete periodontal treatment (F and L) on the maxillary molars, maxillary anteriors, what nerves should be anesthetized?
PSA nerve, Great palatine nerve, ASA, Nasopalatine
Where is the injection site for the greater palatine nerve?
Between the median palatine raphe and the lingual or palatal gingival margin of the maxillary second molar tooth.
Where is the injection site for the nasopalatine nerve?
Lateral to the incisive papilla
What are the complications for the Greater palatine block?
Pt might become uncomfortable and may gag
What are the complications for the nasopalatine block?
Painful in the papilla if not done right, nothing els.
How do you administer the IO nerve block?
Palpate extraorally the pt's infraorbital foramen, height of the mucobuccal fold at the apex of the maxillary first premolar
For the extraction of the maxillary premolars what nerves need to be anesthetized?
MSA and greater palatine
Under what circumstances do you administer the AMSA nerve block?
When do you need to administer the buccal nerve block?
When working on the buccal mandibular periodontium
Where do you inject you r needle for the Buccal block?
Distal and buccal to the most distal mandibular molar in the mandibular arch, posterior lateral to the last manibular tooth , on the anterior border of the ramus.
What teeth and tissues are anesthetized when you give the IA block?
All teeth manbibular teeth, the tongue floor of the mouth lingual gingiva of one side.
Would you give a bilateral IA block?
Would you give a bilateral incisive block?
Where is the injection site for the IA block?
Mandibular tissue on the medial border of the mandibular ramus, horizonal line posteriorly from the coronoid notch about 2/3 lateral to pterygomandibular flod
When you inject your needle for the IA block, what does it mean if you feel the bone too soon, and what should you do?
Went to far anteriorly, need to pull out and move posterialy.
When you inject your needle for the IA block, what does it mean if you do not feel the bone at all, and what should you do?
Went to far postierorly, need to pull out and go anterioraly
What are the possible complications with the use of IA nerve block?
Lingual shock, Transient facial paraysis; puncture of the partotid gland, Hematoma, Pt might bit there lip and Paresthesia
What structures are drained from the facial lymph nodes?
Malar lymph nodes, Nasolabial lymph nodes, Buccal lymph nodes, and Mandibular lymph nodes
What structures are drained by the Superficial parotid?
Drain the lacrimal gland and external ear
What structures are drained by the Deep partotid?
Drain the middle ear , auditory tube, and parotid gland
Where are the submental lymph nodes located?
Located inferior to the chin between the mandible symphysis and hyoid bone
What does the submental lymph nodes drain?
Drain both sides of the chin, lower lip, floor of the mouth, apex of the tongue, and mandibular incisors and associated tissues.
What structures are drained by the submandibular lymph nodes?
Drain the cheeks, upper lip, body of he tongue, anterior hard palate, all teeth except the mandibular incisors and max. 3 molars, and sublingual, and submandibualr glands.
Where are the occipital lymph nodes located?
Located on the posterior base of the head
What does the occipital lymph nodes drain?
Drains this portion of the scalp
Where does the occipital lymph nodes drain into?
Inferior deep ( Jugulo-omohyoid lymph nodes)
What structures are drained from the anterior jugular lymph nodes?
Drain the infrahyoid region
Where does the lower lip tissue drain?
Submental lymph nodes
Where does the body of the tongue drain?
Submandibular lymph nodes
Where does the base of the tongue drain into?
Superior deep (jugulodigastric lymph nodes)
Where does the throat drain into?
Superior deep cervical
Where does the submandibular salivary gland drain into?
Submandibular lymph nodes
If cancerous cells arise in the above tissue which one has the best prognosis?
Lower lip, Submental, sumanbibular, superior and inferior deep
What forms the jugular trunk?
The efferent vessels of the inferior deep cervical
Describe the superficial fascia ?
Under the skin contains adpoise tissue fat
Describe the deep fascia?
Sheet of dense connective tissue
What does the superficial fascia of the head and neck enclose?
Muscle of facial expression
Where is the investing fascia of the head and neck located?
Just below the superficial fascia
What does the investing fascia enclose?
Surrounding the neck, splits around the submandibular and parotid gland and trapezius and SCM
What structures are contained in the infratemporal space?
Part of the maxillary artery the mandibular nerve and the pterygoid plexus of vains
Where is the pterygomandibular space located?
Part of the infratemporal space between medial pterygoid muscle and mandibular ramus
What does the pterygomandibualr space contain?
Inferior alveolar nerve and vessels
What structures are contained int he submanbiluar space?
Submandibular nodes and salivary gland and facial artery
What is the danger space?
Why is the retopharyngeal space dangerous?
Because infection can pass very quickly threw the head and neck through the thorasic cavity
What does Odontogenic infection mean?
Infection involving the teeth or associated tissue; dental orgin
What is an abscess?
Infection with suppuration resulting from the entrapment of pathogens in a contained space
What is Cellulitis?
Diffuse infalmation of soft tissue space.
Where does osteomyelitis occur most often and why?
Mandible; thicker cortical plates and reduced vascularization
If a Pt has a swelling in the submandibular region as a result of odontogenic infecion, what is the most likely the affected tooth?
3 or 2 molar
What if the swelling was on the sublingual region?
Anterior 1 molar
What complication may be caused be a contaminated needle if it is used for PSA block?
Infection to the carvenous venous sinus, thromboues.